The way I use Tumblr
I use Tumblr for a bunch of different things.
First, I have a personal site. It serves as place to hold links to things I am working on online and contact information for whatever the hot social networking thing is. It’s set up as a blog but I don’t blog there other than posting a photo once per month. I like this setup because it keeps the page fresh without me having to redesign it. Posting once per month also avoids the dreaded “abandoned blog” look. The “publish on” feature in Tumblr makes it possible to schedule posts months in advance.
Next, I have a few product pages. I use these as informational pages about my iPhone apps that include a blog in the sidebar where I can post news or related content. The Tumblr theme engine is super flexible so you are pretty much only limited by your design skills. I don’t suggest creating a product page like this because Tumblr has since introduced a new Pages feature. That’s what I use now when I make something new. Being able to use your own domain names and sub-domains is a great feature too.
The Pages features does what you’d expect. It lets you add a stand-alone page with a nice url (ie. http://parislemon.com/about).
Another thing I started recently is a Tumblr blog where I keep track of HTML5 resources. I’m excited by the possibilities of HTML5 and would like to incorporate some of it’s features into a web app so I keep track of the cool links I find. I use the Tumblr bookmarklet which makes it fast and easy to post links.